EDITOR’S PICKS

Rosenberger presents at the MWC in Barcelona its brand new broadband passive intermodulation site analyzer for multi-function on-site tests and measurements of active and passive elements - whether outdoor or indoor systems, RF or Fiber Optic.

The United States government approved Raytheon Company (NYSE: RTN) to export a Gallium Nitride- (GaN) based Active Electronically Scanned Array (AESA) Patriot sensor to Patriot Air and Missile Defense System partner nations

The radio frequency band that many NASA missions use to communicate with spacecraft — S-band — is getting a bit crowded and noisy, and likely to get more jammed as science missions demand higher and higher data rates.

Smartphones and tablets are everywhere, which is great for communications but a growing burden on wireless channels. Forecasted huge increases in mobile data traffic call for exponentially more channel capacity. Boosting bandwidth and capacity could speed downloads, improve service quality, and enable new applications like the Internet of Things connecting a multitude of devices.

High speed wireless data systems can often experience RF transmit signal corruption that limites the power level a wireless data device can put out at its antenna. To achieve the best possible range coverage area, one needs to maximize RF transmit power. However, this can cause spectral regrowth once the integrated LNA is activated.

Electromagnetic simulation has been used by RF engineers for many years to aid the design of automotive radar sensors, but the increasing demands of advanced driver assistance systems (ADAS) are changing the methods used. Accurate modeling of increasingly complex circuits and antenna systems leads to simulation problem sizes too large (in terms of physical memory – RAM) for traditional frequency-domain finite element method (FEM) formulations. As a result of those limitations, design engineers who use FEM tools are forced to simplify their simulation models to fit the computational resources available, trading away accuracy and limiting the effectiveness of their simulator.

Managing filter selection is not without its risks. Over specifying, under specifying, late system changes, long lead times, and unintended consequences of filter technology choices can be incurred at the worst possible times. If one elects to design a system with modular filters however, many of the concerns around these issues can be allayed.

RF GLOBALNET WELCOMES OUR NEWEST SUPPLIER

RF Globalnet Welcomes Our Newest Supplier

Atlanta Micro, Inc was founded in 2011 with the purpose of designing and manufacturing high performance RF and Microwave products for demanding customer applications. The company is based in Alpharetta, Georgia, just north of Atlanta. Our executives possess over 40 years of experience designing state‑of‑the‑art components, receivers, transceivers and systems for the military, government agencies and the test equipment community. Atlanta Micro is focused on providing best‑in‑class broadband RF solutions meeting stringent specifications while offering reduced size, weight and power consumption necessary for portable and low power platforms. Our products are designed to meet customer needs that have been identified through our extensive experience.

Perhaps most famously portrayed in Robert Heinlein’s Starship Troopers (1959), the idea of the “future soldier” has been around for decades. As rehashed in countless science fiction films and video games, the stereotypical future soldier is equipped with a protective exoskeleton, enhanced sensory equipment, seamless communication systems, and advanced weaponry. While the concept once seemed implausible, there are many real-world projects under way focused on realizing those seemingly fictitious warfighter capabilities — by integrating a plethora of diverse electronic subsystems into a cohesively operational suit.

At the 2014 IEEE MTT International Microwave Symposium earlier this month, I had the opportunity to speak with the event’s general chair, Dr. Larry Dunleavy, about the state of the RF and microwave design industry. While he acknowledged that it is a time of relative uncertainty — due in large part to constrained military budgets and conservative fiscal forecasts for 2014 — he also pointed out that there are plenty of emerging markets where RF and microwave technology is making a significant impact. With the Internet of Things (IoT) driving innovation in burgeoning markets like automotive and healthcare and the development of 5G pushing wireless technology to further heights, there was good reason for nearly 600 companies to flock to the IMS2014 exhibition in Tampa, Fla.

FEATURED PRODUCTS

MtronPTI’s TF0112 varactor tuned aviation navigation band preselector improves safety in cross country and landing operations by attenuating interfering signals that might cause a cockpit radio to lose lock on a desired VOR or localizer/glide-slope signal.

The Model ATH4G8 is a wide band, high gain, microwave horn antenna that provides a minimum gain of 11.5dB over isotropic. The Model ATH4G8 supplies the constant high intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room.

Manufactured by AR Modular RF, model KMW2030 is an AM/FM-UHF/VHF DAMA booster amplifier for signals in the 30 to 512 MHz frequency range, with an optional external low-noise pre-amplifier for use in the UHF SatCom mode

These equalizers have been designed for use as a compensation circuit to correct for the loss slope that can be sometimes be created by other circuit elements. They’re ideal for integration into EW, ECM, and ECCM broadband microwave modules.

EMI Filters are used to prevent electromagnetic interference in avionics and aircraft systems, as well as military shipboard/vehicle electronics, and in military communication systems. Electromagnetic interference can cause a complete loss of data in communications systems, or a simple decline in data quality.

AD1000 is a high dielectric constant
substrate that permits circuit miniaturization
compared to traditional low loss materials. It is
especially beneficial for power amplifiers, filters,
couplers and other components using low
impedance lines.

Microwave Communications Laboratories, Inc. (MCLI), located in St. Petersburg, Florida, is a designer and manufacturer of Custom RF-Microwave Passive and Active Components. We supply both government and commercial entities with the proper equipment and support to facilitate high frequency electronic communication.

COM DEV Ltd. - SAW Products is part of COM DEV International Ltd. is a global designer and manufacturer of space hardware. We are world leaders in the production of space-qualified passive microwave equipment, specialized electronics and optical subsystems. We have more than 1,200 employees at facilities in Canada, the United Kingdom and the United States. More about COM DEV.

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ELECTRONIC MILITARY & DEFENSE MAGAZINE

Electronic Military & Defense was developed as a resource for engineers, program managers, project managers, and other professionals involved in the design and development of electronic and electro-optic systems for a wide range of defense and aerospace applications. Check out the digital edition of our latest issue for exclusive editorial on wearable antennas for military applications, countering EMI threats, biological and chemical threat detection, advances in optical sensing, and more.

A joint effort between Nokia and the Fraunhofer IIS in Erlangen has resulted in the development of a test bed that features a unique combination of wide network coverage and the latest long term evolution advanced (LTE-A) technology. Fraunhofer IIS is using the LTE-A test bed to evaluate new services and applications for the Internet of Things (IoT) and mobile connectivity.

Galtronics Corporation Ltd., a Baylin Technologies (TSX:BYL) company, announces the expansion of its wireless infrastructure products with the launch of CONNECTi™, a new line of passive radio frequency devices designed specifically for next-generation head-end infrastructure and telecom network access equipment.

Pasternack, a leading manufacturer and supplier of RF, microwave and millimeter wave products, has expanded their lines of high frequency right angle RF adapters which are widely used in the military and commercial markets for applications such as wireless communications, test labs, equipment racks and many other space-limited applications.

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